Matches 251 - 300 out of 472 < 1 2 3 4 5 6 7 8 9 10 >
Match Document Document Title
5076683 Spuncast compound contact lens  
A reproducibly-made, wholly spuncast, non-truncated ballasted, compound surfaced soft contact lens and the method of making the same by spincasting a polymer forming monomer mixture.
5075106 Vinylic macromers containing perfluoropolyalkylether and polyalkylether segments, polymers and ophthalmic devices made therefrom  
The instant invention relates to vinylic macromers containing perfluoropolyalkylether and polyalklether segments, polymers and ophthalmic devices such as intraocular implants and contact lenses and...
5071244 Soft bifocal contact lens  
A soft bifocal contact lens has a carrier lens of soft plastic material shaped and dimensioned to an eye of a user. A central portion of the carrier lens is formed to provide distance-vision...
5069542 Contact lens  
A contact lens has an elliptical inside surface with a numerical eccentricity of 0.2 to 0.5 and a zenith radius of curvature of 8.0 to 8.4 mm. The inside surface preferably has a peripheral,...
5070166 Wettable, flexible, oxygen permeable, contact lens containing polyoxyalkylene backbone units, and use thereof  
Contact lenses which are optically clear, wettable, flexible, and of high oxygen permeability in the aqueous ocular environment of use, of a polymer containing polyoxyalkylene backbone units are...
5066301 Variable focus lens  
A variable focus lens apparatus includes a transparent, generally circular envelope, a transparent gel having a relatively high resistance to flow encased in the envelope, and a plurality of light...
5062701 Asymmetric contact lens  
A contact lens comprising a corneal section, a vertical axis, and a shape adapted to maintain the lens at an intended orientation. The lens has either a visible horizontal line segment located in...
5061057 Porous contact lens and method for making it  
In order to make hard and soft contact lenses having a pore diameter and a pore density optimum for use as oxygen permeable contact lenses, the contact lens after molding is subjected to...
5059018 Colored contact lens  
A contact lens having a circular colored area at center thereof, and has a mark arranged in the colored area. The mark is provided by applying deeper or different color on the colored area, or...
5044742 Contact lens  
A contact lens comprising a central, optically active zone and a peripheral, optically nonactive zone, the lens having an anterior surface and a posterior surface, the posterior surface being...
5039769 Wettable, flexible, oxygen permeable, substantially non-swellable contact lens containing polyoxyalkylene backbone units, and use thereof  
Contact lenses which are optically clear, wettable, flexible, of high oxygen permeability and substantially non-swellable in the aqueous ocular environment of use, of a polymer containing...
5019100 Use of a polymer network, method for preparing a prepolymer and also preparation which yields a polymer network after curing  
The invention relates to the use of a polymer network comprising a poly(meth) acrylate which is linked by means of oligomer chains which contain chemically bound ethylene oxide units as hydratable...
5011275 Dimethylacrylamide-copolymer hydrogels with high oxygen permeability  
The invention describes polymers which are obtained by copolymerization of 15-85 wt % N,N-dimethylacrylamide with about 15-85% of a fluorinated monomer such as perfluoroalkyl-alkylene acrylate or...
5009497 Contact lenses utilizing keel orientation  
The invention relates to a variety of contact lens designs which attempt to achieve a stable lens orientation by providing such contact lenses with approximately circular profiled grooves or...
5008102 Biocompatible intraocular light-screening compositions and methods of intraocular light screening  
Temporary, light-absorbing, ocularly biocompatible compositions include at least one biocompatible, light-absorbing substance in an amount sufficient to block substantially all light of desired...
5008354 Contact lens  
The contact lens of the present invention consisting of a polymer comprising, as an essential component, at least one fluorine-containing monomer represented by the general formula ##STR1## (R 1 ...
4998817 Contact lens for correction of color blindness  
A corneal contact lens for the correction of color blindness, which is clear except for a thin red exterior layer covering the area admitting light to the pupil.
4997441 Contact or intraocular lens from lightly crosslinked polymer or copolymer of 2-hydroxyethyl methacrylate and a method for producing thereof  
Contact lens or intraocular lens from lightly crosslinked polymer of 2-hydroxyethyl methacrylate or from such its copolymer, where the 2-hydroxyethyl methacrylate component prevails over the second...
4996275 Fluorine containing polymeric compositions useful in contact lenses  
Improved contact lens compositions are achieved through incorporation of a fluorine containing mono or diester of itaconic acid in siloxane polymeric contact lens compositions. Copolymers include...
4979959 Biocompatible coating for solid surfaces  
The biocompatibility of biomaterials having solid surfaces is improved through coating the same with biocompatible agents where the biocompatible agents are covalently bonded to the solid surface...
4976533 Method for measuring the rotation of an assymetric contact lens and lenses for practicing the method  
A contact lens comprising a corneal section, a vertical axis, and a shape adapted to maintain the lens at an intended orientation. The improvement comprises either a visible horizontal line segment...
RE33477 Ultraviolet absorbing hydrophilic corneal contact lenses  
This invention relates to ultraviolet absorbing lenses, particularly corneal contact lenses, comprising a polymeric shaped body having an ultraviolet absorber dispersed substantially uniformly...
4963160 Reactive uv absorbing compositions and method of preparing lenses therefrom  
An ultraviolet radiation absorbing agent for bonding to an ocular lens, wherein the agent has the formula: ##STR1## wherein A and B are ultraviolet radiation absorbing components which are either...
4956432 Hydrophilic transparent crosslinked copolymer and the method for producing thereof  
The solution concerns hydrophilic transparent crosslinked copolymers and a method for their production. A substance of the solution is the hydrophilic copolymer which can be prepared by the radical...
4948245 Hydrogel contact lens  
A high water content hydrogel contact lens (10) with improved oxygen transmission combined with good movement characteristics over the cornea to prevent corneal damage and configured for low minus...
4943150 Method of making variable modulus lenses  
A method for forming a contact lens comprising subjecting a soft contact lens impregnated with a polymerizable liquid composition which may be polymerized in said lens to render said lens...
4920184 Hydrophilic silicone rubber article and process for its preparation  
Hydrophilic silicone rubber article, the surface of which is hydrophilized partly or completely by reaction (equilibration reaction) with organosiloxanes, the organosiloxanes being synthesized by...
4909621 Method of making hydrogel contact lenses having aspheric front surfaces  
A contact lens of soft, pliable opthalmic plastic material, said lens when in its dehydrated state having a spherical back surface which in its hydrated state conforms to the corneal curvature of...
4909896 Process for producing contact lens  
The contact lens of the present invention is produced by a process comprising a step of irradiating a transparent polymeric material with charged particles and a step of applying an etching...
4895896 Contact lens having improved eye compatibility  
Contact lens comprising an eye-compatible surface on which monoclonal antibodies or fragments of antibodies are immobilized, the N-terminal ends of which are directed against mucous substances of...
4892402 Method for making contact lens hydrophilic  
A contact lens is made hydrophilic by contacting the lens with a treating solution containing a hydrophilic monomer, at least one photosensitizer selected from aromatic ketones or quinones, and a...
4890911 Contact lens and the method of manufacturing thereof  
The invention pertains to a new design of contact lenses and to the method of their manufacturing. The contact lens comprising a carrier portion and a hydrophilic supporting portion mediating the...
4886350 Perforated soft contact lens and a method for manufacturing thereof  
A perforated soft contact lens which has at least one perforated formed inside the optical zone of lens, i.e. in the distance 0 to 3.5 mm from the lens center. It is manufactured by placing the...
4874234 Toric contact lens with displaced center of gravity  
A toric contact lens with the center of gravity displaced in the direction to its edge by the effect of an one-sided thickening of the lens, where, according to the invention, its optical zone has...
4872878 Optical brigthener in an intraocular lens  
The ultraviolet screening of a silicone rubber intraocular lens can be enhanced by the addition of an optical brightener. The optical brightener also serves to reduce any apparent yellow tint that...
4872877 Intraocular lens with ultraviolet screening agent  
An ultraviolet screening agent can be incorporated into a preformed silicone rubber intraocular lens by bringing it into contact with a solution which contains the agent in a higher concentration...
4861850 Ophthalamic device from fluoro-silicon polymers  
Comfortable, oxygen permeable hard and semi-hard contact lenses are made from the copolymer of ethylenically unsaturated siloxanylalkoxy ester monomer, ethylenically unsaturated fluorocarbon ester...
4859719 Polymer blends with high water absorption  
Miscible blends of slid, non-crosslinked polymers are disclosed. The blends comprise from 2 to 95 parts by weight of a water-insoluble, hydrophobic polymer and, correspondingly from 98 to 5 parts...
4859049 Contact lens for oriented optical corrections  
The contact lens comprises a central optical zone and a peripheral zone for fastening the lens. For centering said lens the peripheral zone comprises two stabilizing bosses which are disposed on...
4855176 Anti-blurring optical member  
An anti-blurring optical member for window panes, reflecting mirrors, etc. for use in automobiles, ships and boats, buildings, and so forth, which secures good viewing field by the formation of...
4853453 Modified silicone rubber and its use as a material for optical lenses and optical lenses made from this material  
A modified silicone rubber with dimethylsiloxane and urethane units in the main chains, which are cross linked through methyl groups. This material is hydrophilic and suitable as a contact lens...
4850689 Near vision contact lens and methods of making and using it  
A near vision contact lens has a generally elliptical body of concavo-convex cross-sectional configuration with interior and exterior curvatures providing the desired power from the bottom to the...
4840477 Dyed color change contact lens  
A cosmetic contact lens that changes the apparent color of the eye. The lens will change a dark brown eye to light blue or green. This color change is accomplished by having a transparent dyed iris...
4818801 Ophthalmic device comprising a polymer of a telechelic perfluoropolyether  
Ophthalmic devices, such as contact lenses, of polymers of telechelic perfluorinated polyether monomers, and compositions for making such devices are disclosed. The devices possess improved oxygen...
4814402 Contact lens material  
A contact lens material composed of a copolymer of a monomer mixture comprising, as essential monomers, from 5 to 20 parts by weight, based on 100 parts by weight of the total monomer mixture, of a...
4810082 Corneal onlay lens  
A device for correcting refractive errors in the eye comprising a synthetic corneal onlay lens. The lens has an annular projection received in an annular recess in the corneal outer surface and a...
4808709 Matrix polymer and its preparation  
A cationic dextran compound matrix-copolymer obtained by reacting with a polymerizable unsaturated acid or a polymerizable unsaturated acid and olefin compound a dextran derivative which is...
4788227 Contact lens formed from a hydrogel fundamental material  
An optically transparent hydrogen forming material comprising a copolymer of an optically transparent polyester having a molecular weight of 1,000 to 100,000 and at least one of polymerizable group...
4781978 Articles having a coating formed from a polymeric blend  
Article comprising a substrate bearing an optically clear, non-crosslinked coating formed from a blend comprising at least one polymer containing carbonylamido functional groups and at least one...
4777684 Apparatus and method for custom tinting soft contact lenses by dispenser of lenses  
Presented is a method and apparatus for custom tinting soft contact lenses in the dispensing office prior to dispensing such lenses to the wearer, or even after they have been dispensed and worn...
Matches 251 - 300 out of 472 < 1 2 3 4 5 6 7 8 9 10 >